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Steel Bars, Forgings, and Rings 0.50Cr – 0.55Ni – 0.25Mo (0.38 – 0.43C) (SAE 8740)
- Aerospace Material Specification
- AMS6322R
- Revised
Sector:
Issuing Committee:
Language:
English
Scope
This specification covers an aircraft-quality, low-alloy steel in the form of bars, forgings, flash-welded rings, and stock for forging or flash-welded rings.
Rationale
AMS6322R results from a Five-Year Review and update of this specification that revises composition analytical methods (3.1), adds grain refiners (3.1.1), revises grain size determination (3.3.2) and decarburization determination (3.3.4), adds no unauthorized exceptions (3.6), and revises classification of tests (4.2), reporting (4.4), and identification (5.2.1).
Recommended Content
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Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| [Unnamed Dataset 1] | ||
| [Unnamed Dataset 2] | ||
| Table 1 | Composition | |
| Table 2 | Macrostructure limits | |
| Table 3A | Maximum total depth of decarburization limits, inch/pound units | |
| Table 3B | Maximum total depth of decarburization limits, SI units |
Issuing Committee
AMS E Carbon and Low Alloy Steels Committee
The committee of Carbon and Low Alloy Steels, AMS Committee E, shall prepare, coordinate, and revise documents related to carbon and low alloy steels technology, such as steel cleanliness and steel quality assurance sampling, through the participation of metals suppliers, users, and interested government agencies. Committee activities shall provide a forum for the cooperative interchange of ideas and experience of the participants, resulting in the publication of specifications that embody sound, established aerospace industry practices and requirements to serve the suppliers and customers of aerospace materials.
Reference
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